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Research and Development for Hydrogen Production by Anion Exchange Membrane Water Electrolyzer with self-made GDE
H2 Energy and Fuel Cell Laboratory | 2020 - present
Research Interests:
Anion Exchange Membrane Water Electrolyzers
Fuel Cell
Green Energy
Supercapacitor
Supply Chain Management
Logistics (Inventory & Warehouse)
Hydrogen production is an alternative ways of renewable energy to play a significant role reducing global warming and promoting clean energy, with numerous benefit such as zero emission, high energy density, reducing air pollution, and mitigating climate change. Electrolyzer is various method for generating hydrogen from water. Nowadays, AEM water electrolyzer is well known as device to produce hydrogen. Park et al (2019) and wang (2020) explain to produce hydrogen via Anion Exchange Membrane water electrolyzer shows in figure, water is essential input source which pumped into a single-cell and an electrical current is passed through the AEMs, where water will separate into hydrogen and oxygen gases, also known HER (Hydrogen Evaluation Reaction) and OER (Oxygen Evaluation Reaction) at cathode and anode, respectively. The reaction of two half-cell reactions can be described as follows:
Hydrogen production is an alternative ways of renewable energy to play a significant role reducing global warming and promoting clean energy, with numerous benefit such as zero emission, high energy density, reducing air pollution, and mitigating climate change. Electrolyzer is various method for generating hydrogen from water. Nowadays, AEM water electrolyzer is well known as device to produce hydrogen. Park et al (2019) and wang (2020) explain to produce hydrogen via Anion Exchange Membrane water electrolyzer shows in figure, water is essential input source which pumped into a single-cell and an electrical current is passed through the AEMs, where water will separate into hydrogen and oxygen gases, also known HER (Hydrogen Evaluation Reaction) and OER (Oxygen Evaluation Reaction) at cathode and anode, respectively. The reaction of two half-cell reactions can be described as follows:
Anode (OER) : 4OH- → 2H2O + O2 +4e-
Cathode (HER) : 4H2O + 4e- → 2H2 + 4OH-
Overall reaction : 2H2O → 2H2 + O2
Overall reaction : 2H2O → 2H2 + O2
In this work, the effects of Gas Diffusion Layers (GDLs), membranes, hot-pressing conditions and Pt loading on the performance of the membrane electrode assembly (MEA) for AEM water electrolyzers were examined. The MEA in this study was fabricated according to the catalyst coated substrate (CCS) method with 40% Pt catalyst on Vulcan XC-37R carbon support and various GDLs, membranes and hot-pressing methods. The studied GDLs included carbon paper (0.21mm) (hydrophilic and hydrophobic), carbon paper (0.31mm) and carbon cloth (0.33mm). Moreover, both commercial membranes, Sustainion® X37-50 Grade RT membrane and fuma (FAA-3-50) membrane, were used for further investigation of the performance. The two hot-pressing processes were carried out under 75℃, 3 minutes, and 100kg/cm2, and 75℃, 4 minutes, and 100kg/cm2 were studied to compare the electrolysis performance under various hot-pressing processes. To evaluate the electrolysis performance with various catalyst loading, the target Pt loading of 2 mg/cm2, 3 mg/cm2, and 5 mg/cm2 on both anode and cathode sides was studied.
In this work, the effects of Gas Diffusion Layers (GDLs), membranes, hot-pressing conditions and Pt loading on the performance of the membrane electrode assembly (MEA) for AEM water electrolyzers were examined. The MEA in this study was fabricated according to the catalyst coated substrate (CCS) method with 40% Pt catalyst on Vulcan XC-37R carbon support and various GDLs, membranes and hot-pressing methods. The studied GDLs included carbon paper (0.21mm) (hydrophilic and hydrophobic), carbon paper (0.31mm) and carbon cloth (0.33mm). Moreover, both commercial membranes, Sustainion® X37-50 Grade RT membrane and fuma (FAA-3-50) membrane, were used for further investigation of the performance. The two hot-pressing processes were carried out under 75℃, 3 minutes, and 100kg/cm2, and 75℃, 4 minutes, and 100kg/cm2 were studied to compare the electrolysis performance under various hot-pressing processes. To evaluate the electrolysis performance with various catalyst loading, the target Pt loading of 2 mg/cm2, 3 mg/cm2, and 5 mg/cm2 on both anode and cathode sides was studied.
Schematic of Experimental Set up
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